Low Voltage, Millimeter-Wave Cerenkov Amplifiers.
Abstract
Research results establish that novel periodic magnetic focusing optics offer the opportunity to propagate much higher beam currents than previously achievable in slow wave vacuum microwave devices. Several new sources for sheet electron beams have been designed and numerically analyzed, including 2 different thermionic electron gun designs as well as one approach that uses magnetic quadrupole optics for converting a conventional round beam into a large aspect ratio ellipical (i.e., sheet) beam. Round beam focusing by short period PPQM arrays was also studied. We have developed new understanding of the relatively unexplored area of hybrid electromagnetic waveguide mode dynamics. The dispersive properties of a slow wave grating system have been measured and compared with the theoretical model.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1996
- Accession Number
- ADA321851
Entities
People
- John E. Scharer
- John H. Booske
Organizations
- University of Wisconsin–Madison